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Proceedings Paper

Tracking A 150 Ton Altitude-Azimuth Telescope To Sub-Arcsecond Accuracy
Author(s): David J. Barlow; Daniel R. Blanco; Anthony D. Poyner
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Paper Abstract

The Multiple Mirror Telescope is a 150 ton optical instrument composed of an array of six 1.8 m diameter folded Cassegrain telescopes. A mount for the array uses conventional ball bearings and gear trains to permit the telescope to track in two axes, azimuth and altitude. A computer-controlled servo system uses a 26-bit absolute encoder and associated electronics to achieve an all-sky pointing accuracy approaching 1.0 arcsecond RMS, and a tracking accuracy approaching 0.1 arcsecond RMS.

Paper Details

Date Published: 3 June 1987
PDF: 8 pages
Proc. SPIE 0748, Structural Mechanics of Optical Systems II, (3 June 1987); doi: 10.1117/12.939812
Show Author Affiliations
David J. Barlow, University of Arizona (United States)
Daniel R. Blanco, University of Arizona (United States)
Anthony D. Poyner, University of Arizona (United States)


Published in SPIE Proceedings Vol. 0748:
Structural Mechanics of Optical Systems II
Alson E. Hatheway, Editor(s)

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